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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 10 |
| 3 | 15 |
| 4 | 66 |
| 5 | 153 |
| 6 | 406 |
| 7 | 435 |
| 8 | 561 |
| 9 | 861 |
| 10 | 903 |
| 11 | 1378 |
| 12 | 1540 |
| 13 | 1770 |
| 14 | 2211 |
| 15 | 2346 |
| 16 | 2556 |
| 17 | 2926 |
| 18 | 3655 |
| 19 | 3916 |
| 20 | 4186 |
| 21 | 4371 |
| 22 | 5151 |
| 23 | 5778 |
| 24 | 6555 |
| 25 | 7626 |
| 26 | 9453 |
| 27 | 10011 |
| 28 | 10296 |
| 29 | 11175 |
| 30 | 11325 |
| 31 | 12720 |
| 32 | 14535 |
| 33 | 14878 |
| 34 | 16110 |
| 35 | 16836 |
| 36 | 17205 |
| 37 | 17391 |
| 38 | 17766 |
| 39 | 18336 |
| 40 | 19306 |
| 41 | 19503 |
| 42 | 20301 |
| 43 | 20706 |
[6,10,15,66,153,406,435,561,861,903,1378,1540, 1770,2211,2346,2556,2926,3655,3916,4186,4371,5151, 5778,6555,7626,9453,10011,10296,11175,11325,12720, 14535,14878,16110,16836,17205,17391,17766,18336, 19306,19503,20301,20706] |